HDSL

It compares the technological economy ratio and practical applicability of HFC, HDSL, ADSL and FTTC.

比较了高比特率数字用户线(HDSL) 、 不对称数字用户线(ADSL)、光纤到路边(FTTC)、光缆同轴混合网的技术经济比及实用性.

With HDSL, they can do it in an hour.

用HDSL,安装只要1小时.

POTS requires a special modulation and conversion schemes with HDSL, unlike other XDSL variations.

与其它的XDSL变型不一样,用HDSL时, POTS需要特殊的调制和转换方案.

It describes the current standards for HDSL equipment manufactureand relative Droducts.

概述了现行有关标准及相应产品.

HDSL is the most established of the XDSL technologies.

HDSL是XDSL技术 中最早建成的一种.

HDSL Technology is one kind of multi-switch-in technology in communication network.

高速数字用户线(HDSL)技术是通信网络多种接入技术中的一种.

Despite their speed, the IDSN, ADSL and HDSL protocols do have limitations.

尽管传输速度快, ISDN 、 ADSL和HDSL协议也都有局限性.

The benefit of HDSL is that it provides T 1 speed in both directions.

HDSL的优点是在两个方向上提供T1速度.

The technique uses 16 level TCPAM, and has obvious technical advantages compared with ADSL and HDSL.

该技术采用16电平TCPAM, 与ADSL,HDSL技术相比具有明显的技术优势.